CN113318369B - Closed foam water spraying system - Google Patents
Closed foam water spraying system Download PDFInfo
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- CN113318369B CN113318369B CN202110438550.1A CN202110438550A CN113318369B CN 113318369 B CN113318369 B CN 113318369B CN 202110438550 A CN202110438550 A CN 202110438550A CN 113318369 B CN113318369 B CN 113318369B
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- 239000006260 foam Substances 0.000 title claims abstract description 251
- 238000005507 spraying Methods 0.000 title claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000007788 liquid Substances 0.000 claims abstract description 203
- 239000011550 stock solution Substances 0.000 claims abstract description 86
- 239000007921 spray Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000013589 supplement Substances 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims description 53
- 238000004140 cleaning Methods 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 36
- 238000002360 preparation method Methods 0.000 claims description 14
- 239000012141 concentrate Substances 0.000 claims description 12
- 238000010586 diagram Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 7
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 230000006399 behavior Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005406 washing Methods 0.000 description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011493 spray foam Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
- A62C31/07—Nozzles specially adapted for fire-extinguishing with two or more outlets for different media
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention provides a closed foam water spray system, comprising: the liquid outlets of the water spraying module, the main foam module and the spare foam module of each set of spraying subsystem are respectively connected with a spraying pipe network through a proportional mixer, and the liquid outlet of each water spraying module is provided with a driving pump; liquid inlets of the main foam module and the standby foam module and liquid outlets of the water spray module are respectively communicated with a stock solution conveying pipeline; a plurality of valve bodies in a normally closed state; the control device is used for controlling the second valve body and the driving pump to be opened when a fire disaster occurs in the area where the corresponding spraying subsystem is located, controlling the fourth valve body and the sixth valve body to be alternately opened for fire extinguishment, and controlling the third valve body, the fifth valve body and the seventh valve body to supplement foam stock solution in a linkage manner in the fire extinguishment process; and after the fire extinguishing is finished, the first valve body, the seventh valve body and the driving pump are controlled to be linked to clean the stock solution conveying pipeline. The fire extinguishing device has the beneficial effects that the fire extinguishing requirements of different fire behaviors can be met, the service life of a pipeline is prolonged, and the cost of fire engineering is saved.
Description
Technical Field
The invention relates to the technical field of fire fighting, in particular to a closed foam water spraying system.
Background
The closed foam water spraying system belongs to one type of automatic spraying-foam combined fire extinguishing system. The foam liquid supply device is added on the basis of the original wet automatic water spraying system, the whole system is in an abstinence state at ordinary times, and once a protected object catches fire, the system can quickly spray foam to cover a protection area, prevent the fire from spreading and control the fire, and then the fire fighting water is utilized to extinguish the fire and prevent the fire from reigniting.
The existing closed foam water spraying system has the following problems:
1. the foam concentrate is provided by the foam concentrate supply device, but the storage capacity of the foam concentrate is limited, so that the fire extinguishing requirement is difficult to meet under the condition of large fire;
2. when fire is extinguished, due to the fact that foam liquid or foam water mixed liquid flows in a spraying pipeline of the system, certain corrosion and the like are easily caused to the pipeline after long-time use, and the existing closed foam water spraying system is lack of cleaning after the spraying pipeline is used.
Disclosure of Invention
In view of the problems in the prior art, the present invention provides a closed foam water spray system, comprising:
the system comprises a plurality of sets of spraying subsystems, wherein each set of spraying subsystem comprises a water spraying module, a main foam module and a spare foam module, liquid outlets of the water spraying module, the main foam module and the spare foam module are respectively connected with a liquid inlet of a proportional mixer, a liquid outlet of the proportional mixer is connected with a spraying pipe network, and a driving pump is arranged at the liquid outlet of each water spraying module;
the stock solution conveying pipeline is communicated with the liquid outlets of at least one foam stock solution storage device;
the valve bodies are in a normally closed state and comprise a first valve body arranged between the liquid outlet of the water spraying module and the stock solution conveying pipeline, a second valve body arranged between the liquid outlet of the water spraying module and the proportional mixer, a third valve body arranged at the liquid inlet of the main foam module, a fourth valve body arranged at the liquid outlet of the main foam module, a fifth valve body arranged at the liquid inlet of the standby foam module, a sixth valve body arranged at the liquid outlet of the standby foam module and a seventh valve body respectively arranged between two adjacent spraying subsystems of the stock solution conveying pipeline;
the fire detection devices are correspondingly arranged in the areas where the spraying subsystems are located;
a control device respectively connected to the driving pump, the valve bodies and the fire detection device, the control device including:
the first control module is used for receiving a detection result of the fire detection device, controlling the corresponding second valve body and the driving pump to be opened when the detection result indicates that a fire disaster occurs in the area where the corresponding spraying subsystem is located, controlling the fourth valve body and the sixth valve body to be alternately opened for fire extinguishment, and controlling the third valve body, the fifth valve body and the seventh valve body to be linked to supplement foam stock solution in the fire extinguishment process;
and the second control module is connected with the first control module and used for cleaning the stock solution conveying pipeline by controlling the first valve body, the seventh valve body and the driving pump of the spraying subsystem which generates the fire according to an external cleaning instruction after the fire extinguishing is finished.
Preferably, the first control module includes:
the data receiving unit is used for receiving the detection result of the fire detection device and outputting a fire extinguishing signal when the detection result shows that the corresponding spraying subsystem is in the area where the fire occurs;
the first control unit is connected with the data receiving unit and used for controlling the second valve body, the fourth valve body and the driving pump of the corresponding spraying subsystem to be started to extinguish fire according to the fire extinguishing signal;
the pre-filling control unit is connected with the data receiving unit and is used for controlling the seventh valve body between the foam stock solution storage device and the spraying subsystem in fire to be opened according to the fire extinguishing signal so as to pre-fill the foam stock solution in the corresponding stock solution conveying pipeline;
and the second control unit is respectively connected with the data receiving unit and the pre-filling control unit and is used for controlling the third valve body and the fifth valve body to alternately act according to the fire extinguishing signal in the fire extinguishing process according to the liquid level information of the foam stock solution stored in the main foam module and the standby foam module, which is acquired in real time, so as to supplement the foam stock solution through the foam stock solution pre-filled in the stock solution conveying pipeline.
Preferably, the second control unit is respectively connected with a first liquid level sensor and a second liquid level sensor, wherein the first liquid level sensor is arranged in the main foam module and used for detecting a first liquid level of the foam stock solution stored in the main foam module in real time as the liquid level information, and the second liquid level sensor is arranged in the foam preparation module and used for detecting a second liquid level of the foam stock solution stored in the foam preparation module in real time as the liquid level information.
Preferably, the pre-filled control unit comprises:
the storage subunit is used for storing a pre-generated pipeline running diagram of the stock solution conveying pipeline, and the pipeline running diagram is marked with a first position of each main foam module and a second position of the foam stock solution storage device;
the processing subunit is connected with the storage subunit and is used for processing the foam stock solution storage device closest to the main foam module of the spraying subsystem with the fire and a conveying path between the foam stock solution storage device and the main foam module according to the first position and the second position of the main foam module of the spraying subsystem with the fire;
and the filling subunit is connected with the processing subunit and used for controlling the seventh valve body on the conveying path to open so as to convey the foam stock solution to the conveying path through the foam stock solution storage device to pre-fill the conveying path.
Preferably, the second control unit includes:
the receiving subunit is used for receiving the first liquid level and the second liquid level in real time in the fire extinguishing process, outputting a first detection result when the first liquid level is smaller than a first threshold value, and outputting a second detection result when the second liquid level is smaller than a second threshold value;
the first control subunit is connected with the receiving subunit and is used for controlling the sixth valve body to open according to the first detection result so as to convey the foam stock solution to the proportional mixer, then controlling the fourth valve body to close and controlling the third valve body to open in the opening process of the sixth valve body, and supplementing the foam stock solution to the main foam module;
and the second control subunit is respectively connected with the receiving subunit and the first control subunit and is used for controlling the third valve body to be closed and the fourth valve body to be opened to convey the foam stock solution to the proportioning mixer according to the second detection result, and then controlling the sixth valve body to be closed and the fifth valve body to be opened in the opening process of the fourth valve body to replenish the foam stock solution to the foam preparation module.
Preferably, the second control module includes:
the third control unit is used for controlling the seventh valves on the conveying path to be closed according to the cleaning instruction;
and the fourth control unit is connected with the third control unit and used for controlling the first valve body and the driving pump to be opened so as to spray water to the stock solution conveying pipeline corresponding to the spraying subsystem for cleaning aiming at each spraying subsystem covered by the conveying path after each seventh valve is closed.
Preferably, each spraying subsystem is further provided with a liquid storage tank, a liquid inlet of the liquid storage tank is close to the seventh valve body and is communicated with the stock solution conveying pipeline, and a liquid inlet of the liquid storage tank is provided with an eighth valve body;
the fourth control unit further controls the eighth valve body to be opened before the water spray cleaning is carried out, so that the cleaning liquid obtained after the water spray cleaning is contained in the liquid storage tank in the water spray cleaning process.
Preferably, each liquid storage tank is further provided with a liquid outlet, a third liquid level sensor used for detecting a third liquid level of the cleaning liquid in the liquid storage tank in real time is arranged in the liquid storage tank, and a ninth valve body is arranged on the liquid outlet and is communicated with the corresponding liquid outlet to spray the pipe network of the spraying subsystem.
Preferably, the first control module further includes a fifth control unit, which is respectively connected to the data receiving unit, the first control unit and the third liquid level sensor, and the fifth control unit includes:
the judging subunit is used for acquiring the third liquid level in real time according to the fire extinguishing signal, outputting a first judging result when the third liquid level is greater than a third threshold value, and outputting a second judging result when the third liquid level is not greater than the third threshold value;
the third control subunit is connected with the judging subunit and is used for controlling the ninth valve body to be opened according to the first judgment result so as to convey the cleaning liquid to the spraying pipe network for extinguishing fire;
the fourth control subunit is connected with the judging subunit and is used for outputting a control signal according to the second judgment result;
and the first control unit controls the second valve body, the fourth valve body and the driving pump of the corresponding spraying subsystem to be started to extinguish the fire according to the control signal and the fire extinguishing signal.
Preferably, the foam stock solution is a plant active flame-retardant foam extinguishing agent.
The technical scheme has the following advantages or beneficial effects:
1) the main foam module and the standby foam module alternately provide foam stock solution for fire extinguishment, and in the fire extinguishment process, the main foam module and the standby foam module can alternately supplement the foam stock solution through a stock solution conveying pipeline, so that the fire extinguishment requirements of different fire behaviors can be met, the setting specifications of the main foam module and the standby foam module are not limited, the occupied area is small, the arrangement of the main foam module and the standby foam module is further facilitated, and the construction cost of fire engineering is effectively saved;
2) after the fire is extinguished, the original liquid conveying pipeline is cleaned, so that the corrosion of the foam original liquid to the original liquid conveying pipeline is reduced, and the service life of the original liquid conveying pipeline is effectively prolonged;
3) the foam stock solution storage device can be arranged at a position convenient for manual operation, so that the foam stock solution can be conveniently added, and then the foam stock solution is conveyed to each main foam module and each standby foam module through a stock solution conveying pipeline for filling after use without respectively filling the foam stock solution into each main foam module and each standby foam module;
4) the cleaning liquid is stored by the liquid storage tank, and the cleaning liquid is preferably adopted for fire extinguishment when a fire disaster occurs, so that the secondary utilization of the cleaning liquid is realized;
5) the plant active flame-retardant foam extinguishing agent is adopted, so that the quick fire extinguishing is realized, and the environment is protected.
Drawings
FIG. 1 is a schematic diagram of a closed foam water sprinkler system according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of the control structure of the closed foam water spray system in the preferred embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present invention is not limited to the embodiment, and other embodiments may be included in the scope of the present invention as long as the gist of the present invention is satisfied.
In accordance with the above-mentioned problems occurring in the prior art, there is provided in a preferred embodiment of the present invention, a closed foam water spray system, as shown in fig. 1 and 2, comprising:
a plurality of sets of spraying subsystems 1, wherein each set of spraying subsystem 1 comprises a water spraying module 11, a main foam module 12 and a spare foam module 13, the liquid outlets of the water spraying module 11, the main foam module 12 and the spare foam module 13 are respectively connected with the liquid inlet of a proportional mixer 14, the liquid outlet of the proportional mixer 14 is connected with a spraying pipe network 15, and the liquid outlet of each water spraying module 11 is provided with a driving pump 16;
the stock solution conveying pipeline 2, the liquid inlets of the main foam modules 12 and the spare foam modules 13 and the liquid outlets of the water spray modules 11 are respectively communicated with the stock solution conveying pipeline 2, and the stock solution conveying pipeline 2 is also communicated with the liquid outlet of at least one foam stock solution storage device 3;
the valve bodies 4 are in a normally closed state, each valve body 4 comprises a first valve body 41 arranged between the liquid outlet of the water spraying module 11 and the raw liquid conveying pipeline 2, a second valve body 42 arranged between the liquid outlet of the water spraying module 11 and the proportional mixer 14, a third valve body 43 arranged at the liquid inlet of the main foam module 13, a fourth valve body 44 arranged at the liquid outlet of the main foam module 13, a fifth valve body 45 arranged at the liquid inlet of the standby foam module 13, a sixth valve body 46 arranged at the liquid outlet of the standby foam module 13, and a seventh valve body 47 respectively arranged between two adjacent spraying subsystems 1 of the raw liquid conveying pipeline 2;
a plurality of fire detection devices 5 correspondingly arranged in the area where each spraying subsystem 1 is located;
and a control device 6 connected to the drive pump 16, the valve bodies 4, and the fire detection device 5, respectively, wherein the control device 6 includes:
the first control module 61 is configured to receive a detection result of the fire detection device 5, control the corresponding second valve 42 and the driving pump 16 to be opened, control the fourth valve 44 and the sixth valve 46 to be alternately opened to extinguish a fire when the detection result indicates that a fire occurs in an area where the corresponding spraying subsystem is located, and control the third valve 43, the fifth valve 45 and the seventh valve 47 to be linked to supplement foam stock solution during the fire extinguishing process;
and the second control module 62 is connected with the first control module 61 and used for cleaning the stock solution conveying pipeline 2 by controlling the first valve body 41, the seventh valve body 47 and the driving pump 16 of the spraying subsystem which generates the fire in a linkage manner according to an external cleaning instruction after the fire extinguishing is finished.
Specifically, in this embodiment, for each spraying subsystem 1, through configuring main foam module 12 and spare foam module 13, when putting out a fire, preferentially open the liquid outlet of main foam module 12, the foam stoste of its output passes through proportional mixer 14 with the water that water spray module 11 output and mixes the back by spraying pipe network 15 blowout to realize putting out a fire through the mixed liquid of water and foam stoste as extinguishing medium, effectively promote fire control effect and be suitable for the conflagration type wide range.
Further, in the process of outputting the foam raw liquid by the main foam module 12, monitoring a first liquid level of the foam raw liquid in the main foam module 12, when the first liquid level is smaller than a first preset threshold value, it indicates that the surplus of the foam raw liquid in the main foam module 12 is not enough to continue to extinguish a fire, at this time, opening a liquid outlet of the standby foam module 13, so that the foam raw liquid is output by the liquid outlet of the standby foam module 13, then closing the liquid outlet of the main foam module 12, opening a liquid inlet of the main foam module 12, and supplementing the foam raw liquid into the main foam module 12 through the raw liquid conveying pipeline 2, that is, outputting the foam raw liquid by the standby foam module 13 and supplementing the foam raw liquid by the main foam module 12 are performed simultaneously. Further, in the process of outputting the foam raw liquid by the foam preparation module 13, the second liquid level of the foam raw liquid is also monitored, when the second liquid level is smaller than a second threshold value configured in advance, it is indicated that the residual amount of the foam raw liquid in the foam preparation module 12 is not enough to continue extinguishing the fire, if the fire is not extinguished yet at this time, the liquid inlet of the main foam module 12 is closed, then the liquid outlet of the main foam module 12 is opened, the liquid outlet of the foam preparation module 13 is closed, the liquid inlet of the foam preparation module is opened, the foam raw liquid is switched to be output by the main foam module 12 to extinguish the fire, meanwhile, the foam preparation module 13 performs foam raw liquid supplement, and so on until the fire extinguishment is completed. Through main foam module 12 with be equipped with foam module 13 and provide the foam stoste in turn and put out a fire, and at the in-process of putting out a fire, main foam module 12 with be equipped with foam module 13 and can carry out the replenishment of foam stoste in turn through stoste pipeline 2, can satisfy the demand of putting out a fire of different intensity of a fire, and do not restrict main foam module 12 and be equipped with foam module 13's the specification that sets up, take up an area of less, further make things convenient for main foam module 12 and be equipped with foam module 13's arrangement, effectively practice thrift the fire-fighting engineering cost.
Furthermore, due to the relatively high concentration of the foam concentrate transported in the concentrate transport pipe, the concentrate transport pipe needs to be cleaned after the fire extinguishing is finished. Preferably, the control device 6 of the present technical solution is provided with an instruction input port for a user to input a cleaning instruction, and then cleans the stock solution conveying pipeline according to the cleaning instruction. In this embodiment, the stock solution conveying pipeline is cleaned by using water sprayed from the water spraying module 11 of the spraying subsystem, and a water outlet device is not required to be additionally arranged. Through the washing to stoste pipeline, reduce the corruption of foam stoste to stoste pipeline, effectively promote stoste pipeline's life.
Furthermore, because the main foam module 12 and the spare foam module 13 of each spraying subsystem are communicated with the stock solution conveying pipeline, the foam stock solution storage device 3 can be arranged at a position convenient for manual operation, so that the foam stock solution can be conveniently added, and then the foam stock solution is conveyed to each main foam module 12 and each spare foam module 13 through the stock solution conveying pipeline 2 to be filled after use without respectively filling the foam stock solution into each main foam module 12 and each spare foam module 13.
In a preferred embodiment of the present invention, the first control module 61 includes:
a data receiving unit 611, configured to receive a detection result of the fire detection device, and output a fire extinguishing signal when the detection result indicates that a fire occurs in an area where the corresponding spraying subsystem is located;
the first control unit 612 is connected to the data receiving unit 611 and is configured to control the second valve body, the fourth valve body and the driving pump of the corresponding spraying subsystem to be turned on according to the fire extinguishing signal to extinguish the fire;
a pre-filling control unit 613 connected to the data receiving unit 611 for controlling a seventh valve between the foam concentrate storage device and the fire-fighting spraying subsystem to open according to the fire extinguishing signal so as to pre-fill the corresponding concentrate delivery pipeline with foam concentrate;
and the second control unit 614 is respectively connected with the data receiving unit 611 and the pre-filling control unit 613, and is configured to control the third valve body and the fifth valve body to alternately act according to the fire extinguishing signal in the fire extinguishing process according to the liquid level information of the foam stock solution stored in the main foam module and the standby foam module, which is acquired in real time, so as to replenish the foam stock solution through the foam stock solution pre-filled in the stock solution delivery pipeline.
Specifically, in this embodiment, through carrying out the pre-filling of foam stoste to stoste pipeline 2 according to the signal of putting out a fire, guarantee in the main foam module 12 that corresponds and when being equipped with foam module 13 and need carry out the replenishment of foam stoste, can in time provide, saved the transmission time of foam stoste in stoste pipeline 2, when avoiding appearing in the main foam module 12 that corresponds and being equipped with foam module 13 and need carry out the replenishment of foam stoste, need wait for the foam stoste to carry in place, influence the replenishment of foam stoste, and then influence the fire control effect.
In a preferred embodiment of the present invention, the second control unit 614 is connected to a first liquid level sensor 71 and a second liquid level sensor 72 respectively, wherein the first liquid level sensor 71 is disposed in the main foam module 13 and is configured to detect a first liquid level of the foam raw liquid stored in the main foam module 12 as liquid level information in real time, and the second liquid level sensor 72 is disposed in the foam preparation module 13 and is configured to detect a second liquid level of the foam raw liquid stored in the foam preparation module 13 as liquid level information in real time.
In a preferred embodiment of the present invention, the pre-fill control unit 613 comprises:
the storage subunit 6131 is configured to store a pre-generated pipeline routing diagram of the stock solution conveying pipeline, where the pipeline routing diagram is marked with a first position of each main foam module and a second position of the foam stock solution storage device;
the processing subunit 6132 is connected with the storage subunit 6131, and is configured to process the foam concentrate storage device closest to the main foam module of the fire-occurring spraying subsystem and a conveying path between the foam concentrate storage device and the main foam module according to the first position and the second position of the main foam module of the fire-occurring spraying subsystem;
and the filling subunit 6133, connected to the processing subunit 6132, is configured to control the seventh valve body on the conveying path to open, so as to pre-fill the conveying path by conveying the foam raw liquid to the conveying path through the foam raw liquid storage device.
Specifically, in this embodiment, in an actual application environment, possibly due to complexity of a terrain, the foam raw liquid storage device 2 may have a plurality of branches, and the foam raw liquid conveying pipeline may have a plurality of branches, the foam raw liquid storage device closest to the main foam module in the fire area is obtained by processing the first position of each main foam module and the second position of the foam raw liquid storage device in the pipeline route diagram in real time, and an optimal conveying path is obtained based on the foam raw liquid storage device and the pipeline route diagram, so that the transmission time of the foam raw liquid in the foam raw liquid conveying pipeline is effectively saved.
In a preferred embodiment of the present invention, the second control unit 614 includes:
the receiving subunit 6141 is configured to receive the first liquid level and the second liquid level in real time during the fire extinguishing process, output a first detection result when the first liquid level is less than a first threshold, and output a second detection result when the second liquid level is less than a second threshold;
the first control subunit 6142, connected to the receiving subunit 6141, is configured to control, according to the first detection result, the sixth valve to open and deliver the foam raw liquid to the proportioning mixer, and then control, in the opening process of the sixth valve, the fourth valve to close and the third valve to open, so as to supplement the foam raw liquid to the main foam module;
and the second control subunit 6143, which is respectively connected to the receiving subunit 6141 and the first control subunit 6142, is configured to control the third valve to close and control the fourth valve to open to deliver the foam raw liquid to the proportioner according to the second detection result, and then control the sixth valve to close and control the fifth valve to open during the opening of the fourth valve to supplement the foam raw liquid to the foam preparation module.
In a preferred embodiment of the present invention, the second control module 62 includes:
a third control unit 621, configured to control each seventh valve on the conveying path to be closed according to the cleaning instruction;
and the fourth control unit 622, connected to the third control unit 621, is configured to control the first valve body and the drive pump to be opened to spray water to the raw liquid delivery pipeline corresponding to the spraying subsystem for cleaning, for each spraying subsystem covered by the delivery path after each seventh valve is closed.
In a preferred embodiment of the present invention, each spraying subsystem 1 is further provided with a liquid storage tank 17, a liquid inlet of the liquid storage tank 17 is adjacent to the seventh valve body 47 and is communicated with the stock solution conveying pipeline 2, and a liquid inlet of the liquid storage tank 17 is provided with an eighth valve body 48;
the fourth control unit 622 further controls the eighth valve to open before performing the water spray cleaning, so as to contain the cleaning liquid obtained after the water spray cleaning through the liquid storage tank during the water spray cleaning process.
In the preferred embodiment of the present invention, each liquid storage tank 17 is further provided with a liquid outlet, a third liquid level sensor 73 for detecting a third liquid level of the cleaning liquid in the liquid storage tank in real time is disposed in the liquid storage tank 17, a ninth valve body 49 is disposed on the liquid outlet, and the liquid outlet is communicated with the corresponding spraying pipe network 15 of the spraying subsystem 1.
In a preferred embodiment of the present invention, the first control module 61 further includes a fifth control unit 615, which is respectively connected to the data receiving unit 611, the first control unit 612 and the third liquid level sensor 73, and the fifth control unit 615 includes:
the judging subunit 6151 is configured to obtain a third liquid level in real time according to the fire extinguishing signal, output a first judgment result when the third liquid level is greater than a third threshold, and output a second judgment result when the third liquid level is not greater than the third threshold;
the third control subunit 6152, connected to the judging subunit 6151, is configured to control the ninth valve body to open to deliver the cleaning liquid to the spray pipe network for fire extinguishing according to the first judgment result;
a fourth control subunit 6153, connected to the determining subunit 6151, configured to output a control signal according to the second determination result;
the first control unit 612 controls the second valve body, the fourth valve body and the driving pump of the corresponding spraying subsystem to be started for fire extinguishing according to the control signal and the fire extinguishing signal.
Specifically, in this embodiment, above-mentioned washing liquid is the mixed liquid of water and foam stoste, controls this washing liquid of preferred use when taking place the conflagration, can realize effectively putting out a fire on the one hand on the basis of washing liquid reutilization, and on the other hand flows out the space that holds washing liquid for next washing that carries on stoste pipeline, realizes good circulation.
In a preferred embodiment of the invention, the foam stock solution is a plant active flame-retardant foam extinguishing agent.
Specifically, in this embodiment, the plant-active fire-retardant foam extinguishing agent may be a plant-active fire-retardant foam extinguishing agent disclosed in patent document with patent publication No. CN109646859A entitled plant-type active fire-retardant fire-extinguishing agent.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. A closed foam water spray system, comprising:
the system comprises a plurality of sets of spraying subsystems, wherein each set of spraying subsystem comprises a water spraying module, a main foam module and a spare foam module, liquid outlets of the water spraying module, the main foam module and the spare foam module are respectively connected with a liquid inlet of a proportional mixer, a liquid outlet of the proportional mixer is connected with a spraying pipe network, and a driving pump is arranged at the liquid outlet of each water spraying module;
the stock solution conveying pipeline is communicated with the liquid outlets of at least one foam stock solution storage device;
the valve bodies are in a normally closed state and comprise a first valve body arranged between the liquid outlet of the water spraying module and the stock solution conveying pipeline, a second valve body arranged between the liquid outlet of the water spraying module and the proportional mixer, a third valve body arranged at the liquid inlet of the main foam module, a fourth valve body arranged at the liquid outlet of the main foam module, a fifth valve body arranged at the liquid inlet of the standby foam module, a sixth valve body arranged at the liquid outlet of the standby foam module and a seventh valve body respectively arranged between two adjacent spraying subsystems of the stock solution conveying pipeline;
the fire detection devices are correspondingly arranged in the areas where the spraying subsystems are located;
a control device respectively connected to the driving pump, the valve bodies and the fire detection device, the control device including:
the first control module is used for receiving a detection result of the fire detection device, controlling the corresponding second valve body and the driving pump to be opened when the detection result indicates that a fire disaster occurs in the area where the corresponding spraying subsystem is located, controlling the fourth valve body and the sixth valve body to be alternately opened for fire extinguishment, and controlling the third valve body, the fifth valve body and the seventh valve body to be linked to supplement foam stock solution in the fire extinguishment process;
the second control module is connected with the first control module and used for cleaning the stock solution conveying pipeline through linkage of the first valve body, the seventh valve body and the driving pump of the spraying subsystem for controlling the fire according to an external cleaning instruction after the fire is extinguished;
each spraying subsystem is also provided with a liquid storage tank, a liquid inlet of the liquid storage tank is close to the seventh valve body and is communicated with the stock solution conveying pipeline, and a liquid inlet of the liquid storage tank is provided with an eighth valve body;
the fourth control unit also controls the eighth valve body to be opened before the water spraying and cleaning are carried out, so that cleaning liquid obtained after the water spraying and cleaning is carried out is contained in the liquid storage tank in the water spraying and cleaning process;
each liquid storage tank is also provided with a liquid outlet, a third liquid level sensor for detecting the cleaning liquid in the liquid storage tank in real time is arranged in each liquid storage tank, a ninth valve body is arranged on each liquid outlet, and each liquid outlet is communicated with the corresponding spraying pipe network of the spraying subsystem;
the first control module further comprises a fifth control unit which is respectively connected with the data receiving unit, the first control unit and the third liquid level sensor, and the fifth control unit comprises:
the judging subunit is used for acquiring a third liquid level in real time according to the fire extinguishing signal, outputting a first judging result when the third liquid level is greater than a third threshold value, and outputting a second judging result when the third liquid level is not greater than the third threshold value;
the third control subunit is connected with the judging subunit and used for controlling a ninth valve body to be opened according to the first judgment result so as to convey the cleaning liquid to the spraying pipe network for extinguishing fire;
the fourth control subunit is connected with the judging subunit and is used for outputting a control signal according to the second judgment result;
and the first control unit controls the second valve body, the fourth valve body and the driving pump of the corresponding spraying subsystem to be opened for fire extinguishing according to the control signal and the fire extinguishing signal.
2. The closed foam water spray system of claim 1, wherein the first control module comprises:
the data receiving unit is used for receiving the detection result of the fire detection device and outputting a fire extinguishing signal when the detection result shows that the corresponding spraying subsystem is in the area where the fire occurs;
the first control unit is connected with the data receiving unit and is used for controlling the second valve body, the fourth valve body and the driving pump of the corresponding spraying subsystem to be started to extinguish fire according to the fire extinguishing signal;
the pre-filling control unit is connected with the data receiving unit and is used for controlling the seventh valve body between the foam stock solution storage device and the spraying subsystem in fire to be opened according to the fire extinguishing signal so as to pre-fill the foam stock solution in the corresponding stock solution conveying pipeline;
and the second control unit is respectively connected with the data receiving unit and the pre-filling control unit and is used for controlling the third valve body and the fifth valve body to alternately act according to the fire extinguishing signal in the fire extinguishing process according to the liquid level information of the foam stock solution stored in the main foam module and the standby foam module, which is acquired in real time, so as to supplement the foam stock solution through the foam stock solution pre-filled in the stock solution conveying pipeline.
3. The closed foam water spray system according to claim 2, wherein the second control unit is connected to a first liquid level sensor and a second liquid level sensor, respectively, wherein the first liquid level sensor is disposed in the main foam module and is configured to detect a first liquid level of the foam raw liquid stored in the main foam module in real time as the liquid level information, and the second liquid level sensor is disposed in the foam preparation module and is configured to detect a second liquid level of the foam raw liquid stored in the foam preparation module in real time as the liquid level information.
4. The closed foam water spray system of claim 2 wherein the pre-filled control unit comprises:
the storage subunit is used for storing a pre-generated pipeline running diagram of the stock solution conveying pipeline, and the pipeline running diagram is marked with a first position of each main foam module and a second position of the foam stock solution storage device;
the processing subunit is connected with the storage subunit and is used for processing the foam stock solution storage device closest to the main foam module of the spraying subsystem with the fire and a conveying path between the foam stock solution storage device and the main foam module according to the first position and the second position of the main foam module of the spraying subsystem with the fire;
and the filling subunit is connected with the processing subunit and used for controlling the seventh valve body on the conveying path to be opened so as to convey the foam stock solution to the conveying path through the foam stock solution storage device to pre-fill the conveying path.
5. The closed foam water spray system of claim 3 wherein the second control unit comprises:
the receiving subunit is used for receiving the first liquid level and the second liquid level in real time in the fire extinguishing process, outputting a first detection result when the first liquid level is smaller than a first threshold value, and outputting a second detection result when the second liquid level is smaller than a second threshold value;
the first control subunit is connected with the receiving subunit and is used for controlling the sixth valve body to open according to the first detection result so as to convey the foam stock solution to the proportional mixer, then controlling the fourth valve body to close and controlling the third valve body to open in the opening process of the sixth valve body, and supplementing the foam stock solution to the main foam module;
and the second control subunit is respectively connected with the receiving subunit and the first control subunit and is used for controlling the third valve body to be closed and the fourth valve body to be opened to convey the foam stock solution to the proportioning mixer according to the second detection result, and then controlling the sixth valve body to be closed and the fifth valve body to be opened in the opening process of the fourth valve body to replenish the foam stock solution to the foam preparation module.
6. The closed foam water spray system of claim 4 wherein the second control module comprises:
the third control unit is used for controlling the seventh valve bodies on the conveying path to close according to the cleaning instruction;
and the fourth control unit is connected with the third control unit and used for controlling the first valve body and the driving pump to be opened so as to spray water to the stock solution conveying pipeline corresponding to the spraying subsystem for cleaning aiming at each spraying subsystem covered by the conveying path after each seventh valve body is closed.
7. The closed foam water spray system of claim 1, wherein the foam concentrate is a plant-reactive fire retardant foam fire suppressant agent.
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| CN202110438550.1A CN113318369B (en) | 2021-04-22 | 2021-04-22 | Closed foam water spraying system |
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| CN113318369B true CN113318369B (en) | 2022-06-07 |
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| CN113318369A (en) | 2021-08-31 |
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Effective date of registration: 20240108 Address after: Room 405, No. 28, Lane 195, Baiyang Street, Haishu District, Ningbo City, Zhejiang Province, 315000 Patentee after: Chen Xinger Address before: 315000 No.1, Jinger Road, honorary village, Xinpu Town, Cixi City, Ningbo City, Zhejiang Province Patentee before: Ningbo Mercury Environmental Technology Co.,Ltd. |